Blackberry can be unlock eaisly with remote unlocking codes. you can get this Blackberry imei unlock code from your network provider or get from third party,both are safe way to Unlock your BlackBerry Curve 8310. when you go to online you can find so many sites of Blackberry imei Unlock Code. they will charge little amount for your Blackberry Unlocking Codes. i hope this will help you:) Best of Luck.

It's a clear and fully detailed guide on how to unlock a BlackBerry - 8310 :

1. Insert any sim card2. Turn off all of the wireless connections3. Go to Options4. Select Advanced Options5. Select SIM Card6. Hit menu select show keyboard (if your BlackBerry have touchscreen)7. Type MEPD ( you will not be able to see what you are typing )8. Type MEP2 or MEP4 ( you will not be able to see what you are typing )9. Now the phone will prompt you to enter the mep code10. if you not already have the code, then i suggestBlackBerryMEP.COMto get it from .11. Enter the mep code ( you should see "code accepted" )12. Restart your BlackBerry .

Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.

If is a AT&T sim card. and you locked it. You will need a new sim card.Also any other carrier sim card you will also need a new sim card. That sim card that you locked is burn already and can't be use no more. You can get a new sim card for $5 bucks or free from your carrier.

1 - Switch on your Blackberry Curve 8310 without any Sim card,2 - Go to Options,3 - Select Advanced Options,4 - Select SIM Card,5 - Hold the ALT Key while typing in MEPE or MEPD or MEPPE or MEPPD ( not case sensitive ) ( you will not see text appear on screen while typing ),6 - You will then be presented with a prompt "Enter Network MEP Code". Type in the Unlock Code and press in the track wheel / jog dial to confirm,7 - Your Blackberry Curve 8310 will now be unlocked.

If your phone still not unlocked, it means you have wrong blackberry unlock code. Don't try it again, and go to get new and correct unlock code.

There can be many ways to Unlock your phone.As far as i know unlocking by codes is the simple and safe way.You will need the unique MEP Code for your Blackberry CURVE 8310 and to get it you can use a website with service for Blackberry unlocking .so you can use a website to Unlock your Blackberry CURVE 8310 online instantly - they are mostly using cables to unlock it and the price is higher then on unlocking websites but the result is the same: SIM free Blackberry.

It's a clear and fully detailed guide on how to unlock a BlackBerry 8310 ' Curve :

1. Insert any sim card2. Turn off all of the wireless connections3. Go to Options4. Select Advanced Options5. Select SIM Card6. Hit menu select show keyboard (if your BlackBerry have touchscreen)7. Type MEPD ( you will not be able to see what you are typing )8. Type MEP2 or MEP4 ( you will not be able to see what you are typing )9. Now the phone will prompt you to enter the mep code10. if you not already have the code, then i suggestBlackBerryMEP.COMto get it from .11. Enter the mep code ( you should see "code accepted" )12. Restart your BlackBerry .